ALFA JOINT STOCK COMPANY
www.alfarzpp.lv
alfa@alfarzpp.lv
Parameter
Conditions
AS258N
Min
Typ
Max
Units
40
60
mA
±7
mV
Short Circuit to Ground
V+ =15 V, TA=250C
Input Offset Voltage
V+ =5 V to 30V
Input Offset
Voltage Drift
RS=0 Ω
Input Offset Current
IIN(+) - IIN(-), TA= -450C to 850C
Input Offset
Current Drift
RS=0 Ω
10
Input Bias Current
IIN(+) or IIN(-), TA= -450C to 850C
40
Input Common-Mode
Voltage Range
V+=+30 V
Large Signal
Voltage Gain
Otput Voltage
Swing
VOH
VOL
Output Current
25
V+=+30 V, RL=2 kΩ
26
RL>=10 kΩ
27
nA
pA/0C
300
nA
V+ -2
V
V/mV
V
V+=5 V, RL≥10 kΩ
28
5
10
20
mV
20
mA
VIN+=0 V,
VIN-=+1 V, V+=15 V
2000 a/s ALFA
µV/0C
±100
V+=+15 V
(V0Swing=1 V to 11 V)
RL≥2 kΩ
V0=2 V
Source VIN+=+1 VDC,
VIN-=0 V, V+=15 V
Sink
COPYRIGHT©
7
0
5
page 4
ALFA JOINT STOCK COMPANY
www.alfarzpp.lv
alfa@alfarzpp.lv
AS258N
8
DS9404
AS258N
Low Power Dual Operational Amplifier
General Description
The AS258N series consists of two independent, high gain, internally frequency
compensated operational amplifiers which were designed specifically to operate
from a single power supply over a wide range of voltages. Operation from split power
supplies is also possible and the low power supply current drain is independent of
the magnitude of the power supply voltage.
Application areas include transducer amplifiers, dc gain blocks and all the conventional op amp circuits which now can be more easily implemented in single power
supply systems. For example, the AS258N series can be directly operated off of the
standard +5 VDC power supply voltage which is used in digital systems and will easily
provide the required interface electronics without requiring the additional ±15 VDC
power supplies.
Unique Characteristics
• In the linear mode the input common-mode voltage range includes ground and the
output voltage can also swing to ground, even though operated from only a single
power supply voltage.
• The unity gain cross frequency is temperature compensated.
• The input bias current is also temperature compensated.
Advantages
•
•
•
•
•
Eliminates need for dual supplies.
Two internally compensated op amps in a single package.
Allows directly sensing near GND and VOUT also goes to GND.
Compatible with all forms of logic.
Power drain suitable for battery operation.
Features
• Internally frequency compensated for unity gain.
• Large dc voltage gain
100 dB
• Wide bandwidth (unity gain)
1 MHz
(temperature compensated)
• Wide power supply range:
Single supply
3 V to 32 V
or dual supplies
±1,5 V to ±16 V
• Very low supply current drain (500 µA) - essentially independent of supply
voltage.
• Low input bias current
40 nA
(temperature compensated)
• Low input offset voltage
2 mV
and offset current
5 nA
• Input common-mode voltage range includes ground.
• Differential input voltage range equal to the power supply voltage.
• Large output voltage swing
0 V to V+ - 1,5 V
COPYRIGHT©
2000 a/s ALFA
page 1
DS9404
ALFA JOINT STOCK COMPANY
www.alfarzpp.lv
alfa@alfarzpp.lv
ALFA JOINT STOCK COMPANY
www.alfarzpp.lv
alfa@alfarzpp.lv
AS258N
Electrical Characteristics
Parameter
V+ = +5,0 VDC, unless otherwise stated
Conditions
AS258N
Min
Connection Diagram
Dual-in-Line Packege
Input Offset Voltage
COPYRIGHT©
2000 a/s ALFA
page 2
±2
±5
mVDC
150
nADC
Input Offset Current
IIN(+) - IIN(-), VCM=0 V, TA=250C
±3
±30
nADC
U+ -1.5
V
2
1.2
mA
V+ =30 VDC, TA=250C
0
Over Full Temperature Range
RL=  on All Op Amps
V+ =30 V
V+ =5 V
1,0
0,5
Large Signal
Voltage Gain
V+ =15 V, RL≥2 kΩ
(V0=1 V to 11 V), TA=250C
Common-Mode
Rejection Ratio
DC, VCM=0 V to V+ -1.5 V
TA=250C
70
85
dB
Power Supply
Rejection Ratio
DC, V+ =5 V to 30 V
TA=250C
65
100
dB
Amplifier-to-Amplifier
Coupling
f=1kHz to 20 kHz, TA=250C
(Input Referred)
-120
dB
Output Current
Continuous
-400C to 850C
-650C to +1500C
2600C
DS9404
Units
45
Schematic Diagram
(Each Amplifier)
32 V or ±16 V
32 V
-0,3 V to +32 V
50 mA
830 mW
Max
IIN(+) or IIN(-), VCM=0 V, TA=250C
Supply Current
Supply Voltage, V+
Differential Input Voltage
Input Voltage
Input Current (VIN <-0,3 VDC)
Power Dissipation
Output Short-Circuit to GND (One Amplifier)
V+ ≤ 15 V and TA =250C
Operating Temperature Range
Storage Temperature Range
Lead Temperature (Soldering, 10 seconds)
TA=250C
Typ
Input Bias Current
Input Common-Mode
Voltage Range
Absolute Maximum Ratings
AS258N
VIN+ =1 V, VIN-=0 V,
Source V+ =15 V, V0=2 V, TA=250C
Sink
COPYRIGHT©
50
20
100
40
mA
VIN+=0 VDC, VIN- =1 V,
V+ =15 V, V0=2 V, TA=250C
10
20
VIN+ =0 V, VIN-=1 V, TA=250C,
V+ =15 V, V0=200 mV
12
50
2000 a/s ALFA
page 3
V/mV
µA
DS9404